function menu1(){
		if (document.getElementById("topNav1")) {
			document.getElementById("topNav1").style.visibility="visible"
		}
		if (document.getElementById("topNav2")) {
			document.getElementById("topNav2").style.visibility="hidden"
		}
		if (document.getElementById("topNav3")) {
			document.getElementById("topNav3").style.visibility="hidden"
		}
		if (document.getElementById("topNav4")) {
			document.getElementById("topNav4").style.visibility="hidden"
		}
		if (document.getElementById("topNav5")) {
			document.getElementById("topNav5").style.visibility="hidden"
		}
		if (document.getElementById("tld")) {
			document.getElementById("tld").style.visibility="visible"
		}
	}

	function menu2(){
		if (document.getElementById("topNav1")) {
			document.getElementById("topNav1").style.visibility="hidden"
		}
		if (document.getElementById("topNav2")) {
			document.getElementById("topNav2").style.visibility="visible"
		}
		if (document.getElementById("topNav3")) {
			document.getElementById("topNav3").style.visibility="hidden"
		}
		if (document.getElementById("topNav4")) {
			document.getElementById("topNav4").style.visibility="hidden"
		}
		if (document.getElementById("topNav5")) {
			document.getElementById("topNav5").style.visibility="hidden"
		}
		if (document.getElementById("tld")) {
			document.getElementById("tld").style.visibility="visible"
		}
	}

	function menu3(){
		if (document.getElementById("topNav1")) {
			document.getElementById("topNav1").style.visibility="hidden"
		}
		if (document.getElementById("topNav2")) {
			document.getElementById("topNav2").style.visibility="hidden"
		}
		if (document.getElementById("topNav3")) {
			document.getElementById("topNav3").style.visibility="visible"
		}
		if (document.getElementById("topNav4")) {
			document.getElementById("topNav4").style.visibility="hidden"
		}
		if (document.getElementById("topNav5")) {
			document.getElementById("topNav5").style.visibility="hidden"
		}
		if (document.getElementById("tld")) {
			document.getElementById("tld").style.visibility="visible"
		}
	}

	function menu4(){
		if (document.getElementById("topNav1")) {
			document.getElementById("topNav1").style.visibility="hidden"
		}
		if (document.getElementById("topNav2")) {
			document.getElementById("topNav2").style.visibility="hidden"
		}
		if (document.getElementById("topNav3")) {
			document.getElementById("topNav3").style.visibility="hidden"
		}
		if (document.getElementById("topNav4")) {
			document.getElementById("topNav4").style.visibility="visible"
		}
		if (document.getElementById("topNav5")) {
			document.getElementById("topNav5").style.visibility="hidden"
		}
		if (document.getElementById("tld")) {
			document.getElementById("tld").style.visibility="hidden"
		}
	}

	function menu5(){
		if (document.getElementById("topNav1")) {
			document.getElementById("topNav1").style.visibility="hidden"
		}
		if (document.getElementById("topNav2")) {
			document.getElementById("topNav2").style.visibility="hidden"
		}
		if (document.getElementById("topNav3")) {
			document.getElementById("topNav3").style.visibility="hidden"
		}
		if (document.getElementById("topNav4")) {
			document.getElementById("topNav4").style.visibility="hidden"
		}
		if (document.getElementById("topNav5")) {
			document.getElementById("topNav5").style.visibility="visible"
		}
		if (document.getElementById("tld")) {
			document.getElementById("tld").style.visibility="visible"
		}
	}

	function hideall(){
		if (document.getElementById("topNav1")) {
			document.getElementById("topNav1").style.visibility="hidden"
		}
		if (document.getElementById("topNav2")) {
			document.getElementById("topNav2").style.visibility="hidden"
		}
		if (document.getElementById("topNav3")) {
			document.getElementById("topNav3").style.visibility="hidden"
		}
		if (document.getElementById("topNav4")) {
			document.getElementById("topNav4").style.visibility="hidden"
		}
		if (document.getElementById("topNav5")) {
			document.getElementById("topNav5").style.visibility="hidden"
		}
		if (document.getElementById("tld")) {
			document.getElementById("tld").style.visibility="visible"
		}
	}